Equus 3130 - Scan Tool – OBD2 - Manual (Page 49)

Additional Tests
SYSTEM TEST
OBD2 47
E
Status is calculated by the Scan Tool by comparing the
Test Value against the displayed test limit (either Min or
Max). Status is shown as either Low, High or OK.
5. When you have finished viewing the retrieved test data, scroll to the
end of the display to select Exit, then press the ENTER/LD
button to return to the “Select Test” screen.
SYSTEM TEST
The System Test function lets you initiate a leak test for the vehicle's
EVAP system.
The Scan Tool does not perform the leak test, but signals to
vehicle's on-board computer to initiate the test. The vehicle
manufacturer determines the criteria and method for stopping
the test once it has been started. BEFORE using the System
Test function, refer to the vehicle's service repair manual to
determine the procedures necessary to stop the test.
1. From the "Mode Selection Menu", use
the UP and DOWN buttons as
necessary, to highlight System Test,
then press the ENTER/LD button.
■ The "System Test Menu" displays.
2. Use the UP and DOWN but-
tons, as necessary, to highlight EVAP
Leak Test, then press the ENTER/LD
button.
3. A "One moment please..." message dis-
plays while the request is sent to the
vehicle's on-board computer.
Some vehicle manufacturers do
not allow Scan Tools or other
external devices to control vehicle
systems. If the EVAP Leak Test is
not supported by the vehicle
under test, an advisory message
shows on the Scan Tool's display.
Press the ENTER/LD
button
to return to the System Test menu.
4. When the EVAP leak test has been initi-
ated by the vehicle's on-board comput-
er, a confirmation message shows on
the Scan Tool's display. Press the
ENTER/LD button to return to "Live
Data" mode.